| Titre : |
Using nerve sections to separate Orthodontium gracile Schwaegr. ex Br. Eur. and O. line are Schwaegr. |
| Type de document : |
texte imprimé |
| Auteurs : |
R. D. Porley, Auteur |
| Année de publication : |
1998 |
| Article en page(s) : |
pp. 500-501 |
| Langues : |
Anglais (eng) |
| Catégories : |
[ZG] FINISTERE (29)
[ZG] Royaume-Uni et Irlande
[Thèmes] Bryophytes
[Thèmes] Morphologie végétale
|
| Mots-clés : |
Orthodontium gracile Orthodontium lineare comparaison d'espèce |
| Résumé : |
"British bryologists have frequently experienced difficulty in separating Orthodontium gracile from the introduced O. lineare. Smith (1978) uses the sexuality of the plant and peristome characters. The first character is problematical since O. lineare can be heteroecious, and determining sexuality is not always easy. Furthermore, finding sporophytes at the appropriate stage of development is a serious limitation. Even when mature capsules are present, the endostome and upper segments of the exostome may have broken away, giving the impression of smooth peristome teeth, suggesting o. gracile. However, the lower (usually two) exostome segments of
o. lineare are also smooth and I have seen errors in herbarium material as a result of this confusion." (source : auteur) |
| Type de publication : |
périodique |
| Référence biblio : |
Porley R.-D., 1998 - Using nerve sections to separate Orthodontium gracile Schwaegr. ex Br. Eur. and O. line are Schwaegr. Journal of Bryology, 20 (2) : 500-501. |
| ID PMB : |
71709 |
| DOI : |
10.1179/jbr.1998.20.2.500 |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71709 |
in Journal of Bryology > vol. 20, n°2 (Année 1998) . - pp. 500-501
Ajouter le résultat dans votre panierUsing nerve sections to separate Orthodontium gracile Schwaegr. ex Br. Eur. and O. line are Schwaegr. in Journal of Bryology, vol. 20, n°2 (Année 1998)
